Straps with her hands tied up behind her back. The two Doctors get to work on their next experiment. A clear polymer chain, that Dr. Cupcakes developed, will be used to chain Rachel. The harness is buckled into place first. Dr. Straps seems to enjoy groping and smacking Rachel’s asshole in between tightening straps. A matching head harness ballgag is applied next. Dr. Straps then starts tightening straps around Rachel’s legs. Dr. Cupcakes then cinches them with zipties, making sure they are ultra tight. This is where Part 1 ends.